Chawanpaiboon, Saifon, and Vitaya Titapant. “Ultrasound Assessment of Fetal Skeletal Abnormalities”. Siriraj Medical Journal 54, no. 8 (August 1, 2002): 489–497. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/265296.